“In 2009, Itravelled to Geneva, Switzerland, to follow up on the mysterious case of the Pune-based stud farm owner, Hasan Ali Khan. Khan was accused of stashing a mindboggling $8 billion or `50,000 crore in the Swiss bank, UBS. He had allegedly taken the help of a Kolkata-based businessman, Kashi Nath Tapuria, to squirrel away these funds. Who was Khan and why should he have so much money in a faraway tax haven? Quite clearly, these two shadowy figures were the benamis of someone bigger and more powerful – whose invisible hand guided the trajectory of the probe. Here are the reasons why I think this is the case.”